Qualcomm Incorporated

Vamsi Dokku

Sitaramanjaneyulu Kanamarlapudi

Alok Mitra

Arnaud Meylan

Vaibhav Kumar

Uppinder Singh Babbar

Amir Farajidana

Hariharan Sukumar

Vinay Paradkar

Raul Martinez

Haim Snapy

Vidula Rajeev Kurundkar

Subash Abhinov Kasiviswanathan

Srinivasan Balasubramanian

Ajith Tom Payyappilly

Gerardo Giaretta

Shyamal Ramachandran

Arvind Swaminathan

Sundar Raman

Jeffrey Alan Dyck

Rajashekar Chilla

Srinivas Reddy Mudireddy

Abhishek Bhatnagar

Juan Zhang

Priyangshu Ghosh

Vitaly Drapkin

Shrawan K Khatri

Arunn Coimbatore Krishnamurthy

Prasad Gadde

Prachi Agrawal

Ravi Balasubramanian

Joseph Giacalone

Zhong Ren

Aditya Namjoshi

Thomas Matthew Rebman

Nirupama Locanindi

Radhika Agrawal

Jimi Atul Shah

Rushil Gholap

Dan Gilboa Waizman

Harsh Murari

Brian F Costello

Udayakumar U Menon

Amit M Singh

Mohammed Ali

Narender Mannem

Abhinav Kannan

Andrew Mitchell Siemon

Vandit Pinal Desai

Ryan Michael Chapman

Conner Austin Huff

Hariharan Subramanian

Sean Nicholas Tranchetti

A UE may include one or more application processors and a modem processor. The modem processor may include flow priority engine configured to receive, from the one or more application processors, requests for determining priority treatment of one or more packet filters of one or more uplink transmissions and transmit the one or more uplink transmissions to a base station based on priorities of the one or more uplink transmissions. The priorities of the uplink transmissions may be determined based on at least one of the requests for priority treatment received from the one or more application processors, mapping of uplink transmissions to radio bearers, the priorities of the radio bearers, or one or more configuration rules.

Method and apparatus for prioritizing uplink or downlink flows in multi-processor device

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a device may receive, at a modem of the device, a plurality of data packets associated with one or more connections. The device may group, at the modem of the device, data packets, of the plurality of data packets, associated with a connection, of the one or more connections, into a container based at least in part on one or more characteristics associated with the modem or the data packets. The device may transmit, from the modem to a processor of the device, the container of grouped data packets. Numerous other aspects are provided.

Grouping data packets at a modem

A configuration to enable a UE to send data to a modem, from an AP, in the absence of an uplink grant from the modem. An apparatus receives data transmissions from a base station. The apparatus stores the data transmissions in a memory of the AP of the apparatus. The apparatus identifies, by the AP, an uplink grant based at least in part on a size of a modem buffer. The apparatus determines, by the application processor, whether to send data to the modem based at least in part on the identified uplink grant. The apparatus sends, by the AP, the data when the identified uplink grant exceeds a threshold.

System and method for flow control and acknowledgement transmission

This disclosure provides a method, apparatus, and computer-readable medium for wireless communication at a modem, comprising receiving, via an interface with a host, an internet protocol (IP) packet including a first transport protocol header and a first IP header. The IP packet has a size greater than a maximum transport unit (MTU) size allowable for each packet transmitted over a communication link. The modem segments the IP packet into a plurality of segments based on a segment size indicated by a segmentation policy. Each segment includes a respective derived segment transport protocol header and a respective derived segment IP header derived from the IP packet. Each of these derived headers includes at least one field based on the segmentation policy, and each of the segment transport protocol headers includes a checksum for the respective segment. Additionally, the modem transmits the plurality of segments over the communication link.

Uplink segmentation offload to modem

Certain aspects of the present disclosure relate to wireless communications, and more particularly, to techniques for determining a current status of cellular vehicle to everything (CV2X) traffic and then allocating application processor resources for a CV2X call based on the current status of the CV2X traffic. The allocating may include reserving the application processor resources for the CV2X call when the CV2X traffic is active and releasing the reserved application processor resources when there is no CV2X traffic.

Smart resource management for low latency use case

Aspects described herein relate to instructing, from a layer of a modem processor, a host processor to utilize an increased power consumption state for processing data from a network node. The instructing can be performed based on transmitting a signal to the network node and/or receiving signals from the network node, and at a time that allows the host processor to wake up before receiving data from the modem processor for processing.

Techniques for improving power consumption state latency in wireless communications

Aspects of the present disclosure include methods, apparatuses, and computer readable media for receiving at least one TP packet, computing a current data rate or an end time of a low throughput phase, determining if TP is in the low throughput phase, aggregating the at least one received TP packet or an ACK relating to the at least one received TP packet in response to determining that the TP is not in the low throughput phase, and transmitting the ACK to a sending device.

Methods and apparatus for transport protocol ACK aggregation

Methods, systems, and devices for wireless communications are described in which a host processor at a user equipment (UE) may packetize data for uplink transmissions from the UE and provide packets to a wireless modem of the UE for uplink transmission. The host processor may provide multiplexing and aggregation headers for the packets that include a prioritization indication, and the wireless modem may order the data packets for transmission based at least in part on the prioritization indication. In some cases, a priority for each packet is indicated in a priority field of a corresponding multiplexing and aggregation header. The wireless modem may transmit the data packets based on the ordering, to provide higher priority packets ahead of lower priority packets to a receiver. Additionally, data packets may be further ordered based on tuple information associated with the data packets.

Host driven modem uplink packet prioritization

Wireless communications systems and methods related to uplink buffer management are provided. In some aspects, a user equipment receives a synchronization acknowledgment message destined for a device tethered to the user equipment and transmitted by an application server at a network to which the user equipment is connected. In some aspects, the synchronization acknowledgment message includes an application server receiver window size indicating available buffer space in a receive buffer of the application server. The user equipment can modify the application server receiver window size in the received synchronization acknowledgment message prior to transmitting the received synchronization acknowledgment to the tethered device.

Methods and system for managing uplink buffer at user equipment in tethered call mode

Certain aspects of the present disclosure provide techniques for uplink transport protocol acknowledgment shaping and downlink data shaping at a user equipment. A method that may be performed by the UE generally includes determining an allowed number of transport protocol acknowledgments to transmit in a transmission time interval (TTI); and transmitting one or more transport protocol acknowledgments in the TTI based, at least in part, on the determined allowed number of transport protocol acknowledgments. Another method that may be performed by the UE generally includes determining an allowed number of downlink data units to transmit in a TTI; and transmitting one or more data units in the TTI based, at least in part, on the determined allowed number of data units.

Uplink transport protocol acknowledgment shaping and downlink data shaping at a user equipment

Various aspects of the present disclosure generally relate to wired and/or wireless communication. In some aspects, a device may receive a plurality of data packets at a modem of the device. The device may group, at the modem of the device, payloads of a first subset of the plurality of data packets into a container. The device may transfer, to a processor of the device and using the modem, the container via a first interface channel. The device may transfer, to the processor and using the modem, a second subset of the plurality of data packets via a second interface channel. Numerous other aspects are provided.

Transmission control protocol (TCP) and/or user datagram protocol (UDP) receive offloading

Methods and apparatus are provided for avoiding attempts by a UE to attach to a RAT network when that RAT network is unavailable. According to certain aspects, the UE may detect scenarios when the RAT network is unavailable and take preemptive action to prevent the UE from attempting to acquire service on that RAT. For example, the UE may effectively remove that RAT from a list of supported RATs by sending a UE capability message indicating that RAT is not supported, which may prevent network-initiated transitions of the UE to that RAT. The UE may also remove the unavailable RAT from an internal list of supported RATs, which may prevent UE-initiated transitions to that RAT.

Methods and systems for avoiding transitions between radio access technologies when packet data networks are inaccessible

Aspects of the present disclosure provide techniques and apparatus for improving user experience of a voice call associated with a simultaneous voice and long-term evolution (SV-LTE) device (e.g., improving silent redial during a mobile originated (MO) call or mobile terminated (MT) call by a SV-LTE device. A method for wireless communications by a user equipment (UE) capable of communicating via a first packet-based radio access technology (RAT) and a second circuit-switched RAT is provided. The method generally includes detecting initiation of a mobile originated (MO) call, attempting to establish a connection with the first RAT prior to sending a session initiation protocol (SIP) message for the MO call, determining whether the connection is successfully established, and, if the connection is successfully established, sending the SIP message. Numerous other aspects are provided.

User experience of a voice call associated with a device

Apparatus and methods for power management in a wireless communication device include detecting a change in a serving cell for data communication from a first cell to a second cell; determining whether a terminal equipment (TE) is in a low power state; detecting a first technology type of the first cell and a second technology type of the second cell; determining whether the second technology type is a different technology mode than the first technology type; sending a cell change notification to a data processor associated with the TE when the second technology type is in the different technology mode than the first technology type and the TE is not in a low power state; and suppressing the sending of the cell change notification when the second technology type is not in the different technology mode and the TE is in the low power state.

Apparatus and methods for enhanced user equipment power management via controlled cell change notifications

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San Diego, CA, United States of America

Vamsi Dokku